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Octamethyltrisiloxane

Octamethyltrisiloxane / CAS : 107-51-7

Appearance Transparent colorless liquid UN 1993 3/PG 3
HS 2934999099 DG Class 3.2
Synonyms Trisiloxane, Octamethyl-; 1,1,1,3,3,5,5,5-Octamethyltrisiloxane; Dimethyl-bis(Trimethylsilyloxy)Silane; Dimeticone; Dimethicone 350; Pentamethyl(Trimethylsilyloxy)Disiloxane; Dimethylbis(Trimethylsiloxy)Silane; Dimethicones; Trisiloxane, 1,1,1,3,3,5,5,5-Octamethyl-; Dimeticonum; Dimeticona; Ctamethyltrisiloxane; Pentamethyl(Trimethylsiloxy)Disiloxane; Octamethyl-Trisiloxane; Dimethicone Macromolecule; OS 20 (Siloxane); Dimethylbis(Trimethylsiloxy)Siliane; Dimethylbis(Trimethylsilyloxy)Silane; Silane, Dimethylbis(Trimethylsiloxy)-; 2,2,4,4,6,6-Hexamethyl-3,5-Dioxa-2,4,6-Trisilaheptane
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Properties

Summary

Formula
C8H24O2Si3
Molecular Mass
236.53100
Exact Mass
236.10800
PSA
18.46000
Logp
3.39120
IUPAC
dimethyl-bis(trimethylsilyloxy)silane
SMILES
C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C

Attribute classification

Matter Classification
organic
Category
Organic Chemical Materials > Organo Silicon Compounds

Chemical and Physical Properties

Melting Point
-82 °C
Density
0.82 g/mL at 25 °C(lit.)
Boiling Point
153 °C(lit.)
Flash Point
99 °F
Appearance
Transparent colorless liquid

Export information

HS Code
2934999099
Export Rebate
13%
UN No.
1993 3/PG 3
DG-Class
3.2
Risk Code
R10

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